Q: Car has white smoke when driving around 70mph

asked by on

Somewhere in the area of the engine block and the brake fluid refill tank, my car has been showing white smoke. It happens when I'm driving on the interstate around 70mph and is random, not all the time. From the inspection, it's not losing fluid, so I assume that the problem is not the water pump or hose. I also had my mechanic do a compression test and he said it's not the head gasket. What do you think is the problem?

You may be having a leak at the engine main bearing side bolts on the block of the engine; the bolts might have not been sealed at the manufacturer. Any leaking bolt can be removed, cleaned, sealed with Honda bond, and reinstalled and torqued. The sealer will have to be set overnight to cure before driving or starting the motor.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car has white smoke when driving around 70mph

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I have a 1999 saturn. It burns oil fast and has a lot of white smoke from my exhaust. It shakes mainly in idle. What's wrong?

Hi there. White smoke coming out of the exhaust is an indication that the cylinder head gasket is burned or the cylinder head is cracked. When coolant is in the combustion chamber, then engine will shake, the oil will burn...

Q: I feel a thump anytime I hit the smallest dip in the road. I've been told that my control arm or tie end rod needs to be replaced.

Hi there. Raise up your vehicle and check the tie rod ends and the control arms and see if they are damaged or loose. Also check the strut tower and see if they are loose at the top of the...

Q: My Jeep shifts great at the begining, but after about 25 minutes of driving, it doesn't shift out and the D5 starts flashing

Hey there. This is a common issue related to the transmission pressure switch failing. The transmission pressure switch is a unit that monitors the fluid pressure inside the transmission and relays this to the transmission control module which tells the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.